Stability of interacting grid-connected power converters
The power grid in a typical micro distribution system is non-ideal, presenting itself as a voltage source with significant impedance. Thus, grid-connected converters interact with each other via the non-ideal grid. In this study, we consider the practical scenario of voltage-source converters connec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2013-01-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8986809/ |
| _version_ | 1818735248431644672 |
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| author | Cheng Wan Meng Huang Chi K. Tse Xinbo Ruan |
| author_facet | Cheng Wan Meng Huang Chi K. Tse Xinbo Ruan |
| author_sort | Cheng Wan |
| collection | DOAJ |
| description | The power grid in a typical micro distribution system is non-ideal, presenting itself as a voltage source with significant impedance. Thus, grid-connected converters interact with each other via the non-ideal grid. In this study, we consider the practical scenario of voltage-source converters connected to a three-phase voltage source with significant impedance. We show that stability can be compromised in the interacting converters. Specifically, the stable operating regions in selected parameter space may be reduced when grid-connected converters interact under certain conditions. In this paper, we develop bifurcation boundaries in the parameter space with respect to Hopf-type instability. A small-signal model in the dq-frame is adopted to analyze the system using an impedance-based approach. Moreover, results are presented in design-oriented forms so as to facilitate the identification of variation trends of the parameter ranges that guarantee stable operation. |
| first_indexed | 2024-12-18T00:18:14Z |
| format | Article |
| id | doaj.art-e914bb67698f43c494d95386b1798085 |
| institution | Directory Open Access Journal |
| issn | 2196-5420 |
| language | English |
| last_indexed | 2024-12-18T00:18:14Z |
| publishDate | 2013-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-e914bb67698f43c494d95386b17980852022-12-21T21:27:25ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202013-01-011324525310.1007/s40565-013-0034-y8986809Stability of interacting grid-connected power convertersCheng Wan0Meng Huang1Chi K. Tse2Xinbo Ruan3Hong Kong Polytechnic University,Department of Electronic and Information Engineering,Hong Kong,ChinaSchool of Electronic Engineering, Wuhan University,Wuhan,ChinaHong Kong Polytechnic University,Department of Electronic and Information Engineering,Hong Kong,ChinaCollege of Automation Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,ChinaThe power grid in a typical micro distribution system is non-ideal, presenting itself as a voltage source with significant impedance. Thus, grid-connected converters interact with each other via the non-ideal grid. In this study, we consider the practical scenario of voltage-source converters connected to a three-phase voltage source with significant impedance. We show that stability can be compromised in the interacting converters. Specifically, the stable operating regions in selected parameter space may be reduced when grid-connected converters interact under certain conditions. In this paper, we develop bifurcation boundaries in the parameter space with respect to Hopf-type instability. A small-signal model in the dq-frame is adopted to analyze the system using an impedance-based approach. Moreover, results are presented in design-oriented forms so as to facilitate the identification of variation trends of the parameter ranges that guarantee stable operation.https://ieeexplore.ieee.org/document/8986809/Power convertersStability analysisInteracting systemsGrid-connected converters |
| spellingShingle | Cheng Wan Meng Huang Chi K. Tse Xinbo Ruan Stability of interacting grid-connected power converters Journal of Modern Power Systems and Clean Energy Power converters Stability analysis Interacting systems Grid-connected converters |
| title | Stability of interacting grid-connected power converters |
| title_full | Stability of interacting grid-connected power converters |
| title_fullStr | Stability of interacting grid-connected power converters |
| title_full_unstemmed | Stability of interacting grid-connected power converters |
| title_short | Stability of interacting grid-connected power converters |
| title_sort | stability of interacting grid connected power converters |
| topic | Power converters Stability analysis Interacting systems Grid-connected converters |
| url | https://ieeexplore.ieee.org/document/8986809/ |
| work_keys_str_mv | AT chengwan stabilityofinteractinggridconnectedpowerconverters AT menghuang stabilityofinteractinggridconnectedpowerconverters AT chiktse stabilityofinteractinggridconnectedpowerconverters AT xinboruan stabilityofinteractinggridconnectedpowerconverters |